Magnetically induced transparency and absorption in cholesteric liquid crystals

Dirac Points in Chiral Liquid Crystals

“…In the papers [41][42][43][44][45][46][47][48][49][50] the results of a theoretical and experimental study of the magneto-optical properties of CLCs are presented. Moreover, in the papers [51][52][53][54] the existence of MIT and MIA was demonstrated. In [55] it was reported about observation of Dirac points in CLCs.…”

“…It was shown that the MIT and MIA phenomena are observed near the Dirac points. Let us note, that all the works [51][52][53][54][55] deal with the case when the parameter of magneto-optical activity g is constant and is independent of wavelength. In this paper, we will discuss the possibility of observing Dirac points and lines and exceptional points and lines in magnetically active CLCs in the case when the parameter of magneto-optical activity g is function of wavelength.…”